A:细胞分化和细胞凋亡过程中均存在基因选择性表达
B:细胞衰老过程中的细胞内多种酶活性降低影响细胞代谢
C:细胞癌变过程中细胞的遗传物质改变,细胞的结构和功能发生改变
D:细胞凋亡过程会引起人体的衰老与死亡
( A )
Report Card
Name: James Smith
Time: January 24th, 2015
Subjects
Grades
Comments(评语)
English
B+
Your reading and writing are good. But you have a strong accent(口音), so you are not good at speaking. And you do not put much effort into this subject. If you work hard, you can get a better grade in this subject.
Physics
A+
You are good at this subject. You are hardworking. I am glad that you do best in this subject.
Math
C
You like this subject. But you are not good at this subject because you are a little lazy. It is disappointing.You can do better if you try your best.
Music
B
It is a happy thing to hear you play the piano. You are crazy about music. Although you like this subject best, your accent has a bad influence on your singing.
阅读以上成绩单,根据表格内容完成以下问题
除下列哪项外,其余都含有遗传物质DNA()